Now, I don't want to be a pain, but am I the only one who thinks that adding an extra wolf is MUCH more of a disadvantage to the villagers than adding a couple extra villagers would be a disadvantage to the wolves?
Let's face it, it's darned hard to nail a wolf (Unless you are Farael who always knows

) whereas having a couple more villagers does not make THAT big a difference. True, the wolves need to survive an extra day or two, but then they also have more people to hide among. The higher the amount of villagers, the less likely they'll stumble into a wolf by pure chance!!
Therefore, I vote for 3 wolves, no matter how many villagers we have... and as such, I'd only like to have a seer. The hunter is a bit of an 'unnecesary' role, and not having a ranger makes it all much more fun!
Hope it's not too late to add my cent and a half.